If you haven't been paying much attention to virtual reality, now might be a good time to start. In a series of announcements at Mobile World Congress in Barcelona this week, some of the biggest names in smartphones, consumer electronics and social media have given the technology a major boost.

It's too early to tell whether the new cameras, smartphones, goggles and social media tools are enough to take the technology from video toy to big business, but together they make up the most serious attempt yet to do so.

At one end are new 360-degree cameras from Samsung Electronics and LG Electronics. These are vital for capturing the all-around images required for virtual reality.

He's enthusiastic about VR because he believes it will bring people together like no other technology can.

"VR is the next platform, where anyone can create and experience anything they want," said Zuckerberg. "Pretty soon, we’re going to live in a world where everyone has the power to share and experience whole scenes as if you’re just right there in person."

Virtual reality technology captures images from at least two cameras and stitches them together. In the case of dual cameras, each has a 180-degree fisheye lens.

Martyn Williams

Two fisheye lenses help Samsung's Gear 360 camera capture an all round image

When joined, the result is an image that contains all directions -- sideways, up and down. Imagine the image as a sphere, and you're on the inside.

With a VR headset, you can look around the picture of video as if you were there, while on a 2D screen users can scroll around with a cursor.

Mark Zuckerberg talked about capturing the first steps of his new baby girl with virtual reality. Such an image or video would simultaneously capture not just the steps but also the faces of those watching.

The arrival of low-cost VR headsets also highlights a divergence that's emerging in the market.

Martyn Williams

An attendee to Mobile World Congress in Barcelona tries out an HTC Vive virtual reality headset on Feb. 23, 2016.

For the last several years, a lot of the hype around VR has been about gaming. In that market HTC, Sony and Oculus, which was acquired by Facebook, have VR headsets for serious gamers that pack better screens and audio for a more immersive experience. Two aren't priced yet but the HTC Vive will cost $799.

So consumers can initially expect two very different virtual reality experiences depending on if they go the serious gamer route or casual user route.